DE1939901A1 - Photoelektrische Einrichtung zum Feststellen der Lage von Strichmarkierungen - Google Patents

Photoelektrische Einrichtung zum Feststellen der Lage von Strichmarkierungen

Info

Publication number
DE1939901A1
DE1939901A1 DE19691939901 DE1939901A DE1939901A1 DE 1939901 A1 DE1939901 A1 DE 1939901A1 DE 19691939901 DE19691939901 DE 19691939901 DE 1939901 A DE1939901 A DE 1939901A DE 1939901 A1 DE1939901 A1 DE 1939901A1
Authority
DE
Germany
Prior art keywords
harmonics
excitation frequency
phase
harmonic
vibrating element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19691939901
Other languages
German (de)
English (en)
Inventor
Walter Schmitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Johannes Heidenhain GmbH
Original Assignee
Dr Johannes Heidenhain GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Johannes Heidenhain GmbH filed Critical Dr Johannes Heidenhain GmbH
Priority to DE19691939901 priority Critical patent/DE1939901A1/de
Priority to CH984670A priority patent/CH506781A/de
Priority to US60842A priority patent/US3681605A/en
Priority to FR7028896A priority patent/FR2056620A5/fr
Priority to GB3805770A priority patent/GB1325457A/en
Publication of DE1939901A1 publication Critical patent/DE1939901A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Gyroscopes (AREA)
DE19691939901 1969-08-06 1969-08-06 Photoelektrische Einrichtung zum Feststellen der Lage von Strichmarkierungen Pending DE1939901A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19691939901 DE1939901A1 (de) 1969-08-06 1969-08-06 Photoelektrische Einrichtung zum Feststellen der Lage von Strichmarkierungen
CH984670A CH506781A (de) 1969-08-06 1970-06-30 Photoelektrische Einrichtung zum Feststellen der Lage von Strichmarkierungen
US60842A US3681605A (en) 1969-08-06 1970-08-04 Photoelectric device for the determination of the position of line markings
FR7028896A FR2056620A5 (fr) 1969-08-06 1970-08-05
GB3805770A GB1325457A (en) 1969-08-06 1970-08-06 Photoelectric device for detecting the position of a graduation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691939901 DE1939901A1 (de) 1969-08-06 1969-08-06 Photoelektrische Einrichtung zum Feststellen der Lage von Strichmarkierungen

Publications (1)

Publication Number Publication Date
DE1939901A1 true DE1939901A1 (de) 1971-02-18

Family

ID=5742015

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691939901 Pending DE1939901A1 (de) 1969-08-06 1969-08-06 Photoelektrische Einrichtung zum Feststellen der Lage von Strichmarkierungen

Country Status (5)

Country Link
US (1) US3681605A (fr)
CH (1) CH506781A (fr)
DE (1) DE1939901A1 (fr)
FR (1) FR2056620A5 (fr)
GB (1) GB1325457A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH996H (en) 1987-01-20 1991-11-05 Recognition Equipment Incorporated High resolution page image display system
US5187375A (en) * 1990-12-11 1993-02-16 Texas Instruments Incorporated Optical object edge detector using partially covered reference sensor

Also Published As

Publication number Publication date
GB1325457A (en) 1973-08-01
CH506781A (de) 1971-04-30
US3681605A (en) 1972-08-01
FR2056620A5 (fr) 1971-05-14

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